Electrical ignition mechanism for explosion-engines.



UNITED STATES vieAfriivi OFFICE.,

HENRI CHARLES BRASIER,l OF PARIS, FRANCE.

-ELEGTRIQAL IGNITION MECHANISM Fon l-:xmosloN-r-:NelNEsi To ctZZ I whom -Ilf may concern.'

Be it known that I, HENRI CHARLES BRA- srEn, engineer, a citizen of the French Republic, 'residing at 36 Rue Molitor, Paris,France,v

have invented a certain newand useful Electrical Ignition Mechanism for Explosion-Engines,v of vwhich the followingis a'full, clear, o and exact description, and for Iwhich I have s tion on line 2 2-of-Fig. 1..

tal section on .line 3 3 ofFig.,2. Fig. 4 repplied for Letters Patent'in Franceydated ebruary -11,1902. ,l

This invention -relatesto 'a mechanism for electrically ignitingexplosion-motors by means of a break-s ark.

` My invention re ates to the mechanism intended to produce the break-spark used for ignition. independently of the Anature .of the source of electricity employed, which latterv may consist of an oscillating yor rotary magneto or a dynamo or even a'primary orsecondary'battery. r 1 l I shall describe my invention with reference to the annexed drawings, upon which- Figure 1 shows in sideelevation this mechanism arranged upon a motor-cylinder. Fig. 2 shows this mechanism in sectional eleva- Fig. 3 is a horizonlates to a modification,

The spark is produced 'the cylinder be- -tween a terminal rod and a movable finger or arm. The terminal rod consists of a metallic' rodl, fitted ina plug 2,. screwed into the casing of the cylinder. 4 The terminal rod 1, which is preferably made of an inoxidizable metal, such as nickel, is electrically insulated from the metallic plug 2 by an insulatin cover or sheath 3, made, for example, o

mica. the poles of the source of electricity.

The movable arm intended to come into contact with the rod 1 in order, to cause the l spark as it separates therefrom is shown at 4. It is fixed to the end of a shaft 5, having' a bearing in a plug 6, screwed into the casing of the cylinder, metallic communication being set up between the .arm 4, the shaft 5, the plug 6, and the body of the motor. The shaft 5 projects exteriorly beyond the lug A6, which serves as a bearing therefor.

tsl projecting portion is fitted` with a small lcylinder or boss 7, furnished upon its side 'face with a, ratchet, which engages with a corresponding ratchet upon the faceof a short sleeve 8, also arranged u on the rod 5. This sleeve 8 is furnished wit a projectlon Specication of Letters Patent. applicati@ filed July v12, 1902. seria No. 115,333.

The rod l is connected at 1a to one of Patented Jan. 29, 1907.

1 or n ase 8a. The boss 7 is keyed upon the shaft 5, while the sleeve 8 is mounted loosely upon it.

The boss l7 is fitted with a small arm 7, to

which is. attached a spring 9,V of which the 'other end is secured to stud 9a, 'Xed on the casing. This spring 9 holds up andbrings back the arm 7,` and therefore the shaft 5 and arm 4, ,to a position in which this latter is separated from the .fixed contact-rod- 1. This position is determined by vmeans of a 'stop 7b, against which the arm 7a can abut.

The direction of the ratchets on lateral opposing faces of the boss 7 and sleeve 8 is such that the sleeve 8 is independent of the boss 7' in the direction of rotation (See'Fig. 1..) The sleeve 8 is acted upon byV a spring 10, secured to a ring 11, pinned 'or keyed upon the axis 5, which ring is shown providedwitha o number of pin-holes or indentations, whereby the adjustment of the spring 10 by fracr tions of a turn can be eiected: The spring 10 brings back the sleeve 8 to the positionin which its ratchet is in engagement with that 8o `capable of sliding. in a guide 15', secured upon the casing, and which rod is brought back to its lower position by means of a coil-spring 1 16, as shown. This rod 14 receives a rising movement by means of a sliding'ro'd 17, pro vided in extension thereof, which rod 17 ,'.95

guided in a bush or lining 18, is furnished at its lower part with a roller 19, by means of which it bears upon the peripheryof a cam 20. This-latter is keyed upon. a-secondary shaft 21, turning at a suitable speed relatively to the main shaft of the engine.

The size of the head 14a of thel rod 14 is determined in such a way that when the slide 1,7 r

rests upon the circular portion of the cam 20 that is to say, is at its lowest pointthe rod 14, depressed by its springl 16, is also at its lowest position. The head 14a, forming a stop, limits this position,- so that the lower 'extremity of the rod 1,4 is not Ithenincontact with the head 17 of the `slide 1 7 4The head IOO ` 17a of thelslide isscrewedtliereon so asfto I lock-nut17?. i

flhe'pallet12`is providedat its side 'tvith aj 5 pro]e ct1o n 12a, having abev'ele'd end wiiichis l 4 'to Fig. 1. "Fnelolock 22-issecured to thewall spring 1U-does not. act in this ,recoil'niovenient. f lts function is solely to afford a ,prac-.5v

^ tijcally rigidconnection",betweenfthe 'sleeye aI-11d the bcs'sf'' 7afat'tlie'tirnebf 'the rise ot'lie'f pallet "12 iintil H hef rnfovable varni 4 lnee'tjsftls e '17 terml rod- 1 tlten afterward 'to be .puta in ,tension andallow vtl'e pallet 12 to. end its'upf,.j wardrnovenient until tbe-contact of tlfe arm iwitlittlie rodi being' in suredthe pallet 12 be adjustable',l its position being-insuredby a fast Nthereto and whichV is intendedat the time, of the rise ofthe pallet 12l tobear againstan incline iiorrnedjupon-a' block 22,. which re-f sults tnepallet 12 tilting in the direction y,

v -9to'gact,l which drairs back thearrangement,

. of tne cylinderinsuch arnalner as tob that the mornentofuescapenient, andconse- It isto be especially ndted thattliesepara- .-quen-tly the ignition, `can be varied. jj

tion of. the arrn's'll from the tiredl contact -1 is 15 The 'lowerend, of .the palletv 12'-, p'i'y Oted sole lybrought abcnt by the spring 9 -and con 8O upon the snortsliaft 113, is iittedwitlfapro se'qu'entlyv isseiiectedwith an ev'er -increas- 'jeetio1 i 12b, abutting against a'stopepiece 14b ing speed which depends only en the tension projectingfroin tile head 14a, which; deter``if`o thespring 9 independently of the speed l mines the vertical position of the' said pallet`,'- ywifith Whiclithe Aspring has been tensiimed 25. in which position' tne pallet'is V acted upon by 'that is to say, independently cf thev speedot 85 rits spring 13a, said springfbeing at its 'other :the-engine. This is an essential point ofrny end attached toa-'ring 13b, securedby pins to invention. Thetirning of the spaijkisdetei. f :the shaft jl-BQ i i *I f n mined,v as stated above, :byy adjusting the The Working of this mechanism-is tlila 'fols 'ixed inclinedblccli 22, I n addition, the ade 251A lowing? Figs. 1, 2, andshosvthe' parts inV justrnentinaybe completed by :the move- 9d I the POS-mon lli-Which the mbvab @M1114 iS" -Ine'nt'cfl the head 1743. It will be remarked separated troni the rod 1, the connectingrod that when the slide, 17 4'rests upon the circular. 14 and the slide 1 7 being .at the bottom 'of the port-ionoi'the ca1n20 'and when the c cnnect- `loWer stroke. Vhen-tne eccentric 'part '202.2 ingrod.g 14s also occupies its `Alowest position' o of the cani 20 actsfuponA the'roller 19 of 11the Atl'lere is no contact between the-.lower end of 95 j slide 117,:thislatter eHects itsriseiandlfts; f thisfrod' 14nd. th e'hea`d 17" of the slide.- the/ rod'Mr.y g The upperv .part 'of pallet 1 2, This llatter. thus'rests upon thev cam-20. only Whichis fast t'o said rod 14, raises the nose 8a by its own Weight and Without the spring 16 .of thesleeve, imparting to it an angular intervening, Whichlessens the Wear on this 3 lmovement in the direction of the arrow It A-ca1n20 and -Wearofthe roller.

hasalready been shown that-inthia direction AFig. Lishows amodiiilatic'nof the abovede- 'this sleeve 8, pivoted upntne shaft"5,'- caI 'i'- v scribed arrangement. 1A AIn this forin'the incli-k not Inovefby'rne'ans'ofits ratchetzthefboss 7,. nationofthe pallet 12.430 cause to escapev keyed upon thisg'shaft.V '1t' connected to' the nose 8 1s 'determined' n otl by a iixed in- 1' ao'this'latterjby onlythe spring 10,W-hcli'conf clined block 22,"bnt byfa tai1 8b,-' fast .to the i105 j nects'ittot'lie piece 7 7? ;but since thisspringsleeve'S andwhi hat 'acertain `rncrnent invthe'g,"

A10' requires.in order to ,be p utl in torsion a' angn'lar'inovernent of the 'latter bears againstf 45 as *the rn'ovable'arm 41.' has not met a fixed ob#A `ment of the head 17a.

5'0 tion x, tensioningthe,spring .Whentlje "set forth.

" rnuch greaterfiorcef than that necessary for? .pallet=12. In this modification' th' e 'a ;1'v

' staclenainely, therod 1- -tlie arrangement y H aving thus described' myA electrical .composed'of the sleeve 8,' the spring', the" ltien arrangement,1 wishto state thatjlqpay. boss and arrn 7 7a., the shaft'5, and the arni 4 make various censtructional modiiicationsz I will move as onevpiece and pi otin the -direc which are 1n accordance with the' 'arm 4 meets the iXed and terminal rod -1 the Indevices offthis characterit niportant "z really 'solid 'part foriiied by tlief arin 4, the 'thatithe parts belightftliespringf d.. shaft, and the boss 7 can go riofarther and the-operation smiple, not/only forggthe one@ becomesinnnoyable. vFrom 'this inonient structionaladvantages' gainedgthereby t 55 the pallet 12 continnes'to rise, causing the in order that the pats inayrespondacciij;

- 'sleeve Sto turn slightly in .tlze direction vas' 'vrately and a lways intime' Awith the highrelativelyhtojtlie bess 7, the spring 1'0bein'g speed of :the actuatingmechamsni rnadeimthen tersioned, since immediately tlie'iixed "'fp'e'rativeby the h wh speed of -tbe "eXpl os10n;-,j block 22causes the slidingbevel 1 2a9and con; motors on which-olie ginvcntionis adaptedto1- 6o sequently the pallet 12,2'to incline' toward y. be' used. For :this reasnnfit is importarzfrg? `The' upper end of tlie pallet 12 tllen frees that the spring which r'etnrnis'the movable itself from the nose Stand4 tige spring 9 brings electredebe untrammeledand positive 1n its back the piece? 7a, and tlerefore tlte shaft 5 action and Valways tend to break coptact andA movable arrn' 4, which, separating from' the pull ofits tanventially-arranged spring, 6 5 the terminal rod 1, causes the spark The independently of all other parts oi the mech- -130 lee nose"8fand allows the spring 7 5 anism. The pallet 12 for similar reasons,

must be one which is simple, light,and adapted to strike the sleeve 8 in its upward rise at the lowest limiting position which the sleeve ever occupies, rise .with it, pass to one side to release it, and Yreturn past it without in any wise aHectingit until the upward rise of the pallet. n

I claim as my invention- 1. .An electric ignition device, comprising a iix'ed electrode, a shaft 5 carrying the movable electrode, a boss 7 secured to the shaft,

'and having a spring 9 to separate the movable electrode from the fixed electrode, a sleeve 8 loose on the shaft and having a ratchet to normally engage a ratchet on the said boss, a spring l0 around' said shaft and. secured at one end to the shaft and at the other endA to the sleeve in combination with a 2. In lan .ignition device, mechanism for actuating thienv'able electrode, com rising a'shaft for said electrode, a boss keye theremounts i-von, and a spring for the boss to operatesaid shaft'by pressure in a line substantially tangential thereto and tending to keep the electrodes a art, a sleeve havingA a nose loosely on said shaft and turning free of the bo'ss when traveling to bring the elee-` trodes together, and a spring stronger than.

the rst-mentioned spring between the sleeve and shaft, a stop for limiting the return motion of the sleeve, with relation to the boss, totha:t positionwhere a palletirst engages it, in combination with a vertically-recipro` eating rod and means to operate it, lan upright pallet pivotally mounted on said rod, and a spring to maintain it in its upright osition, said sleeve having an arm adapte to strike and free the pallet'from the noseofl` the f sleeve when said nose has been moved-1a certam distance.

In testimony whereof I have signed. my:l name to this specificationin the presence of two subscribing witnesses. Y I

HENRI CHARLES BRASIER @Witnesses y i GUsTAvn DUMONT, a EDWARD P.v MACLEA'N. 

